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<FONT color="green">001</FONT>    /*<a name="line.1"></a>
<FONT color="green">002</FONT>     * Licensed to the Apache Software Foundation (ASF) under one or more<a name="line.2"></a>
<FONT color="green">003</FONT>     * contributor license agreements.  See the NOTICE file distributed with<a name="line.3"></a>
<FONT color="green">004</FONT>     * this work for additional information regarding copyright ownership.<a name="line.4"></a>
<FONT color="green">005</FONT>     * The ASF licenses this file to You under the Apache License, Version 2.0<a name="line.5"></a>
<FONT color="green">006</FONT>     * (the "License"); you may not use this file except in compliance with<a name="line.6"></a>
<FONT color="green">007</FONT>     * the License.  You may obtain a copy of the License at<a name="line.7"></a>
<FONT color="green">008</FONT>     *<a name="line.8"></a>
<FONT color="green">009</FONT>     *      http://www.apache.org/licenses/LICENSE-2.0<a name="line.9"></a>
<FONT color="green">010</FONT>     *<a name="line.10"></a>
<FONT color="green">011</FONT>     * Unless required by applicable law or agreed to in writing, software<a name="line.11"></a>
<FONT color="green">012</FONT>     * distributed under the License is distributed on an "AS IS" BASIS,<a name="line.12"></a>
<FONT color="green">013</FONT>     * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.<a name="line.13"></a>
<FONT color="green">014</FONT>     * See the License for the specific language governing permissions and<a name="line.14"></a>
<FONT color="green">015</FONT>     * limitations under the License.<a name="line.15"></a>
<FONT color="green">016</FONT>     */<a name="line.16"></a>
<FONT color="green">017</FONT>    package org.apache.commons.beanutils.converters;<a name="line.17"></a>
<FONT color="green">018</FONT>    <a name="line.18"></a>
<FONT color="green">019</FONT>    import java.util.Collections;<a name="line.19"></a>
<FONT color="green">020</FONT>    import java.util.List;<a name="line.20"></a>
<FONT color="green">021</FONT>    import java.util.ArrayList;<a name="line.21"></a>
<FONT color="green">022</FONT>    import java.util.Iterator;<a name="line.22"></a>
<FONT color="green">023</FONT>    import java.util.Collection;<a name="line.23"></a>
<FONT color="green">024</FONT>    import java.io.StreamTokenizer;<a name="line.24"></a>
<FONT color="green">025</FONT>    import java.io.StringReader;<a name="line.25"></a>
<FONT color="green">026</FONT>    import java.io.IOException;<a name="line.26"></a>
<FONT color="green">027</FONT>    import java.lang.reflect.Array;<a name="line.27"></a>
<FONT color="green">028</FONT>    import org.apache.commons.beanutils.ConversionException;<a name="line.28"></a>
<FONT color="green">029</FONT>    import org.apache.commons.beanutils.Converter;<a name="line.29"></a>
<FONT color="green">030</FONT>    <a name="line.30"></a>
<FONT color="green">031</FONT>    /**<a name="line.31"></a>
<FONT color="green">032</FONT>     * Generic {@link Converter} implementaion that handles conversion<a name="line.32"></a>
<FONT color="green">033</FONT>     * to and from &lt;b&gt;array&lt;/b&gt; objects.<a name="line.33"></a>
<FONT color="green">034</FONT>     * &lt;p&gt;<a name="line.34"></a>
<FONT color="green">035</FONT>     * Can be configured to either return a &lt;i&gt;default value&lt;/i&gt; or throw a<a name="line.35"></a>
<FONT color="green">036</FONT>     * &lt;code&gt;ConversionException&lt;/code&gt; if a conversion error occurs.<a name="line.36"></a>
<FONT color="green">037</FONT>     * &lt;p&gt;<a name="line.37"></a>
<FONT color="green">038</FONT>     * The main features of this implementation are:<a name="line.38"></a>
<FONT color="green">039</FONT>     * &lt;ul&gt;<a name="line.39"></a>
<FONT color="green">040</FONT>     *     &lt;li&gt;&lt;b&gt;Element Conversion&lt;/b&gt; - delegates to a {@link Converter},<a name="line.40"></a>
<FONT color="green">041</FONT>     *         appropriate for the type, to convert individual elements<a name="line.41"></a>
<FONT color="green">042</FONT>     *         of the array. This leverages the power of existing converters<a name="line.42"></a>
<FONT color="green">043</FONT>     *         without having to replicate their functionality for converting<a name="line.43"></a>
<FONT color="green">044</FONT>     *         to the element type and removes the need to create a specifc<a name="line.44"></a>
<FONT color="green">045</FONT>     *         array type converters.&lt;/li&gt;<a name="line.45"></a>
<FONT color="green">046</FONT>     *     &lt;li&gt;&lt;b&gt;Arrays or Collections&lt;/b&gt; - can convert from either arrays or<a name="line.46"></a>
<FONT color="green">047</FONT>     *         Collections to an array, limited only by the capability<a name="line.47"></a>
<FONT color="green">048</FONT>     *         of the delegate {@link Converter}.&lt;/li&gt;<a name="line.48"></a>
<FONT color="green">049</FONT>     *     &lt;li&gt;&lt;b&gt;Delimited Lists&lt;/b&gt; - can Convert &lt;b&gt;to&lt;/b&gt; and &lt;b&gt;from&lt;/b&gt; a<a name="line.49"></a>
<FONT color="green">050</FONT>     *         delimited list in String format.&lt;/li&gt;<a name="line.50"></a>
<FONT color="green">051</FONT>     *     &lt;li&gt;&lt;b&gt;Conversion to String&lt;/b&gt; - converts an array to a <a name="line.51"></a>
<FONT color="green">052</FONT>     *         &lt;code&gt;String&lt;/code&gt; in one of two ways: as a &lt;i&gt;delimited list&lt;/i&gt;<a name="line.52"></a>
<FONT color="green">053</FONT>     *         or by converting the first element in the array to a String - this<a name="line.53"></a>
<FONT color="green">054</FONT>     *         is controlled by the {@link ArrayConverter#setOnlyFirstToString(boolean)}<a name="line.54"></a>
<FONT color="green">055</FONT>     *         parameter.&lt;/li&gt;<a name="line.55"></a>
<FONT color="green">056</FONT>     *     &lt;li&gt;&lt;b&gt;Multi Dimensional Arrays&lt;/b&gt; - its possible to convert a &lt;code&gt;String&lt;/code&gt;<a name="line.56"></a>
<FONT color="green">057</FONT>     *         to a multi-dimensional arrays, by embedding {@link ArrayConverter}<a name="line.57"></a>
<FONT color="green">058</FONT>     *         within each other - see example below.&lt;/li&gt;<a name="line.58"></a>
<FONT color="green">059</FONT>     *     &lt;li&gt;&lt;b&gt;Default Value&lt;/b&gt;&lt;/li&gt;<a name="line.59"></a>
<FONT color="green">060</FONT>     *         &lt;ul&gt;<a name="line.60"></a>
<FONT color="green">061</FONT>     *             &lt;li&gt;&lt;b&gt;&lt;i&gt;No Default&lt;/b&gt;&lt;/i&gt; - use the <a name="line.61"></a>
<FONT color="green">062</FONT>     *                 {@link ArrayConverter#ArrayConverter(Class, Converter)}<a name="line.62"></a>
<FONT color="green">063</FONT>     *                 constructor to create a converter which throws a<a name="line.63"></a>
<FONT color="green">064</FONT>     *                 {@link ConversionException} if the value is missing or<a name="line.64"></a>
<FONT color="green">065</FONT>     *                 invalid.&lt;/li&gt;<a name="line.65"></a>
<FONT color="green">066</FONT>     *             &lt;li&gt;&lt;b&gt;&lt;i&gt;Default values&lt;/b&gt;&lt;/i&gt; - use the <a name="line.66"></a>
<FONT color="green">067</FONT>     *                 {@link ArrayConverter#ArrayConverter(Class, Converter, int)}<a name="line.67"></a>
<FONT color="green">068</FONT>     *                 constructor to create a converter which returns a &lt;i&gt;default<a name="line.68"></a>
<FONT color="green">069</FONT>     *                 value&lt;/i&gt;. The &lt;i&gt;defaultSize&lt;/i&gt; parameter controls the <a name="line.69"></a>
<FONT color="green">070</FONT>     *                 &lt;i&gt;default value&lt;/i&gt; in the following way:&lt;/li&gt;<a name="line.70"></a>
<FONT color="green">071</FONT>     *                 &lt;ul&gt;<a name="line.71"></a>
<FONT color="green">072</FONT>     *                    &lt;li&gt;&lt;i&gt;defaultSize &amp;lt; 0&lt;/i&gt; - default is &lt;code&gt;null&lt;/code&gt;&lt;/li&gt;<a name="line.72"></a>
<FONT color="green">073</FONT>     *                    &lt;li&gt;&lt;i&gt;defaultSize = 0&lt;/i&gt; - default is an array of length zero&lt;/li&gt;<a name="line.73"></a>
<FONT color="green">074</FONT>     *                    &lt;li&gt;&lt;i&gt;defaultSize &amp;gt; 0&lt;/i&gt; - default is an array with a<a name="line.74"></a>
<FONT color="green">075</FONT>     *                        length specified by &lt;code&gt;defaultSize&lt;/code&gt; (N.B. elements<a name="line.75"></a>
<FONT color="green">076</FONT>     *                        in the array will be &lt;code&gt;null&lt;/code&gt;)&lt;/li&gt;<a name="line.76"></a>
<FONT color="green">077</FONT>     *                 &lt;/ul&gt;<a name="line.77"></a>
<FONT color="green">078</FONT>     *         &lt;/ul&gt;<a name="line.78"></a>
<FONT color="green">079</FONT>     * &lt;/ul&gt;<a name="line.79"></a>
<FONT color="green">080</FONT>     *<a name="line.80"></a>
<FONT color="green">081</FONT>     * &lt;h3&gt;Parsing Delimited Lists&lt;/h3&gt;<a name="line.81"></a>
<FONT color="green">082</FONT>     * This implementation can convert a delimited list in &lt;code&gt;String&lt;/code&gt; format<a name="line.82"></a>
<FONT color="green">083</FONT>     * into an array of the appropriate type. By default, it uses a comma as the delimiter<a name="line.83"></a>
<FONT color="green">084</FONT>     * but the following methods can be used to configure parsing:<a name="line.84"></a>
<FONT color="green">085</FONT>     * &lt;ul&gt;<a name="line.85"></a>
<FONT color="green">086</FONT>     *     &lt;li&gt;&lt;code&gt;setDelimiter(char)&lt;/code&gt; - allows the character used as<a name="line.86"></a>
<FONT color="green">087</FONT>     *         the delimiter to be configured [default is a comma].&lt;/li&gt;<a name="line.87"></a>
<FONT color="green">088</FONT>     *     &lt;li&gt;&lt;code&gt;setAllowedChars(char[])&lt;/code&gt; - adds additional characters<a name="line.88"></a>
<FONT color="green">089</FONT>     *         (to the default alphabetic/numeric) to those considered to be<a name="line.89"></a>
<FONT color="green">090</FONT>     *         valid token characters.<a name="line.90"></a>
<FONT color="green">091</FONT>     * &lt;/ul&gt;<a name="line.91"></a>
<FONT color="green">092</FONT>     *<a name="line.92"></a>
<FONT color="green">093</FONT>     * &lt;h3&gt;Multi Dimensional Arrays&lt;/h3&gt;<a name="line.93"></a>
<FONT color="green">094</FONT>     * It is possible to convert a &lt;code&gt;String&lt;/code&gt; to mulit-dimensional arrays by using<a name="line.94"></a>
<FONT color="green">095</FONT>     * {@link ArrayConverter} as the element {@link Converter}<a name="line.95"></a>
<FONT color="green">096</FONT>     * within another {@link ArrayConverter}.<a name="line.96"></a>
<FONT color="green">097</FONT>     * &lt;p&gt;<a name="line.97"></a>
<FONT color="green">098</FONT>     * For example, the following code demonstrates how to construct a {@link Converter}<a name="line.98"></a>
<FONT color="green">099</FONT>     * to convert a delimited &lt;code&gt;String&lt;/code&gt; into a two dimensional integer array:<a name="line.99"></a>
<FONT color="green">100</FONT>     * &lt;p&gt;<a name="line.100"></a>
<FONT color="green">101</FONT>     * &lt;pre&gt;<a name="line.101"></a>
<FONT color="green">102</FONT>     *    // Construct an Integer Converter<a name="line.102"></a>
<FONT color="green">103</FONT>     *    IntegerConverter integerConverter = new IntegerConverter();<a name="line.103"></a>
<FONT color="green">104</FONT>     *<a name="line.104"></a>
<FONT color="green">105</FONT>     *    // Construct an array Converter for an integer array (i.e. int[]) using<a name="line.105"></a>
<FONT color="green">106</FONT>     *    // an IntegerConverter as the element converter.<a name="line.106"></a>
<FONT color="green">107</FONT>     *    // N.B. Uses the default comma (i.e. ",") as the delimiter between individual numbers<a name="line.107"></a>
<FONT color="green">108</FONT>     *    ArrayConverter arrayConverter = new ArrayConverter(int[].class, integerConverter);<a name="line.108"></a>
<FONT color="green">109</FONT>     *<a name="line.109"></a>
<FONT color="green">110</FONT>     *    // Construct a "Matrix" Converter which converts arrays of integer arrays using<a name="line.110"></a>
<FONT color="green">111</FONT>     *    // the pre-ceeding ArrayConverter as the element Converter.<a name="line.111"></a>
<FONT color="green">112</FONT>     *    // N.B. Uses a semi-colon (i.e. ";") as the delimiter to separate the different sets of numbers.<a name="line.112"></a>
<FONT color="green">113</FONT>     *    //      Also the delimiter used by the first ArrayConverter needs to be added to the<a name="line.113"></a>
<FONT color="green">114</FONT>     *    //      "allowed characters" for this one.<a name="line.114"></a>
<FONT color="green">115</FONT>     *    ArrayConverter matrixConverter = new ArrayConverter(int[][].class, arrayConverter);<a name="line.115"></a>
<FONT color="green">116</FONT>     *    matrixConverter.setDelimiter(';');<a name="line.116"></a>
<FONT color="green">117</FONT>     *    matrixConverter.setAllowedChars(new char[] {','});<a name="line.117"></a>
<FONT color="green">118</FONT>     *<a name="line.118"></a>
<FONT color="green">119</FONT>     *    // Do the Conversion<a name="line.119"></a>
<FONT color="green">120</FONT>     *    String matrixString = "11,12,13 ; 21,22,23 ; 31,32,33 ; 41,42,43";<a name="line.120"></a>
<FONT color="green">121</FONT>     *    int[][] result = (int[][])matrixConverter.convert(int[][].class, matrixString);<a name="line.121"></a>
<FONT color="green">122</FONT>     * &lt;/pre&gt;<a name="line.122"></a>
<FONT color="green">123</FONT>     *<a name="line.123"></a>
<FONT color="green">124</FONT>     * @version $Revision: 640131 $ $Date: 2008-03-23 02:10:31 +0000 (Sun, 23 Mar 2008) $<a name="line.124"></a>
<FONT color="green">125</FONT>     * @since 1.8.0<a name="line.125"></a>
<FONT color="green">126</FONT>     */<a name="line.126"></a>
<FONT color="green">127</FONT>    public class ArrayConverter extends AbstractConverter {<a name="line.127"></a>
<FONT color="green">128</FONT>    <a name="line.128"></a>
<FONT color="green">129</FONT>        private Object defaultTypeInstance;<a name="line.129"></a>
<FONT color="green">130</FONT>        private Converter elementConverter;<a name="line.130"></a>
<FONT color="green">131</FONT>        private int defaultSize;<a name="line.131"></a>
<FONT color="green">132</FONT>        private char delimiter    = ',';<a name="line.132"></a>
<FONT color="green">133</FONT>        private char[] allowedChars = new char[] {'.', '-'};<a name="line.133"></a>
<FONT color="green">134</FONT>        private boolean onlyFirstToString = true;<a name="line.134"></a>
<FONT color="green">135</FONT>    <a name="line.135"></a>
<FONT color="green">136</FONT>        // ----------------------------------------------------------- Constructors<a name="line.136"></a>
<FONT color="green">137</FONT>    <a name="line.137"></a>
<FONT color="green">138</FONT>        /**<a name="line.138"></a>
<FONT color="green">139</FONT>         * Construct an &lt;b&gt;array&lt;/b&gt; &lt;code&gt;Converter&lt;/code&gt; with the specified<a name="line.139"></a>
<FONT color="green">140</FONT>         * &lt;b&gt;component&lt;/b&gt; &lt;code&gt;Converter&lt;/code&gt; that throws a<a name="line.140"></a>
<FONT color="green">141</FONT>         * &lt;code&gt;ConversionException&lt;/code&gt; if an error occurs.<a name="line.141"></a>
<FONT color="green">142</FONT>         *<a name="line.142"></a>
<FONT color="green">143</FONT>         * @param defaultType The default array type this<a name="line.143"></a>
<FONT color="green">144</FONT>         *  &lt;code&gt;Converter&lt;/code&gt; handles<a name="line.144"></a>
<FONT color="green">145</FONT>         * @param elementConverter Converter used to convert<a name="line.145"></a>
<FONT color="green">146</FONT>         *  individual array elements.<a name="line.146"></a>
<FONT color="green">147</FONT>         */<a name="line.147"></a>
<FONT color="green">148</FONT>        public ArrayConverter(Class defaultType, Converter elementConverter) {<a name="line.148"></a>
<FONT color="green">149</FONT>            super();<a name="line.149"></a>
<FONT color="green">150</FONT>            if (defaultType == null) {<a name="line.150"></a>
<FONT color="green">151</FONT>                throw new IllegalArgumentException("Default type is missing");<a name="line.151"></a>
<FONT color="green">152</FONT>            }<a name="line.152"></a>
<FONT color="green">153</FONT>            if (!defaultType.isArray()) {<a name="line.153"></a>
<FONT color="green">154</FONT>                throw new IllegalArgumentException("Default type must be an array.");<a name="line.154"></a>
<FONT color="green">155</FONT>            }<a name="line.155"></a>
<FONT color="green">156</FONT>            if (elementConverter == null) {<a name="line.156"></a>
<FONT color="green">157</FONT>                throw new IllegalArgumentException("Component Converter is missing.");<a name="line.157"></a>
<FONT color="green">158</FONT>            }<a name="line.158"></a>
<FONT color="green">159</FONT>            this.defaultTypeInstance = Array.newInstance(defaultType.getComponentType(), 0);<a name="line.159"></a>
<FONT color="green">160</FONT>            this.elementConverter = elementConverter;<a name="line.160"></a>
<FONT color="green">161</FONT>        }<a name="line.161"></a>
<FONT color="green">162</FONT>    <a name="line.162"></a>
<FONT color="green">163</FONT>        /**<a name="line.163"></a>
<FONT color="green">164</FONT>         * Construct an &lt;b&gt;array&lt;/b&gt; &lt;code&gt;Converter&lt;/code&gt; with the specified<a name="line.164"></a>
<FONT color="green">165</FONT>         * &lt;b&gt;component&lt;/b&gt; &lt;code&gt;Converter&lt;/code&gt; that returns a default<a name="line.165"></a>
<FONT color="green">166</FONT>         * array of the specified size (or &lt;code&gt;null&lt;/code&gt;) if an error occurs.<a name="line.166"></a>
<FONT color="green">167</FONT>         *<a name="line.167"></a>
<FONT color="green">168</FONT>         * @param defaultType The default array type this<a name="line.168"></a>
<FONT color="green">169</FONT>         *  &lt;code&gt;Converter&lt;/code&gt; handles<a name="line.169"></a>
<FONT color="green">170</FONT>         * @param elementConverter Converter used to convert<a name="line.170"></a>
<FONT color="green">171</FONT>         *  individual array elements.<a name="line.171"></a>
<FONT color="green">172</FONT>         * @param defaultSize Specifies the size of the default array value or if less<a name="line.172"></a>
<FONT color="green">173</FONT>         *  than zero indicates that a &lt;code&gt;null&lt;/code&gt; default value should be used.<a name="line.173"></a>
<FONT color="green">174</FONT>         */<a name="line.174"></a>
<FONT color="green">175</FONT>        public ArrayConverter(Class defaultType, Converter elementConverter, int defaultSize) {<a name="line.175"></a>
<FONT color="green">176</FONT>            this(defaultType, elementConverter);<a name="line.176"></a>
<FONT color="green">177</FONT>            this.defaultSize = defaultSize;<a name="line.177"></a>
<FONT color="green">178</FONT>            Object defaultValue = null;<a name="line.178"></a>
<FONT color="green">179</FONT>            if (defaultSize &gt;= 0) {<a name="line.179"></a>
<FONT color="green">180</FONT>                defaultValue = Array.newInstance(defaultType.getComponentType(), defaultSize);<a name="line.180"></a>
<FONT color="green">181</FONT>            }<a name="line.181"></a>
<FONT color="green">182</FONT>            setDefaultValue(defaultValue);<a name="line.182"></a>
<FONT color="green">183</FONT>        }<a name="line.183"></a>
<FONT color="green">184</FONT>    <a name="line.184"></a>
<FONT color="green">185</FONT>        /**<a name="line.185"></a>
<FONT color="green">186</FONT>         * Set the delimiter to be used for parsing a delimited String.<a name="line.186"></a>
<FONT color="green">187</FONT>         *<a name="line.187"></a>
<FONT color="green">188</FONT>         * @param delimiter The delimiter [default ',']<a name="line.188"></a>
<FONT color="green">189</FONT>         */<a name="line.189"></a>
<FONT color="green">190</FONT>        public void setDelimiter(char delimiter) {<a name="line.190"></a>
<FONT color="green">191</FONT>            this.delimiter = delimiter;<a name="line.191"></a>
<FONT color="green">192</FONT>        }<a name="line.192"></a>
<FONT color="green">193</FONT>    <a name="line.193"></a>
<FONT color="green">194</FONT>        /**<a name="line.194"></a>
<FONT color="green">195</FONT>         * Set the allowed characters to be used for parsing a delimited String.<a name="line.195"></a>
<FONT color="green">196</FONT>         *<a name="line.196"></a>
<FONT color="green">197</FONT>         * @param allowedChars Characters which are to be considered as part of<a name="line.197"></a>
<FONT color="green">198</FONT>         * the tokens when parsing a delimited String [default is '.' and '-']<a name="line.198"></a>
<FONT color="green">199</FONT>         */<a name="line.199"></a>
<FONT color="green">200</FONT>        public void setAllowedChars(char[] allowedChars) {<a name="line.200"></a>
<FONT color="green">201</FONT>            this.allowedChars = allowedChars;<a name="line.201"></a>
<FONT color="green">202</FONT>        }<a name="line.202"></a>
<FONT color="green">203</FONT>    <a name="line.203"></a>
<FONT color="green">204</FONT>        /**<a name="line.204"></a>
<FONT color="green">205</FONT>         * Indicates whether converting to a String should create<a name="line.205"></a>
<FONT color="green">206</FONT>         * a delimited list or just convert the first value.<a name="line.206"></a>
<FONT color="green">207</FONT>         *<a name="line.207"></a>
<FONT color="green">208</FONT>         * @param onlyFirstToString &lt;code&gt;true&lt;/code&gt; converts only<a name="line.208"></a>
<FONT color="green">209</FONT>         * the first value in the array to a String, &lt;code&gt;false&lt;/code&gt;<a name="line.209"></a>
<FONT color="green">210</FONT>         * converts all values in the array into a delimited list (default<a name="line.210"></a>
<FONT color="green">211</FONT>         * is &lt;code&gt;true&lt;/code&gt; <a name="line.211"></a>
<FONT color="green">212</FONT>         */<a name="line.212"></a>
<FONT color="green">213</FONT>        public void setOnlyFirstToString(boolean onlyFirstToString) {<a name="line.213"></a>
<FONT color="green">214</FONT>            this.onlyFirstToString = onlyFirstToString;<a name="line.214"></a>
<FONT color="green">215</FONT>        }<a name="line.215"></a>
<FONT color="green">216</FONT>    <a name="line.216"></a>
<FONT color="green">217</FONT>        /**<a name="line.217"></a>
<FONT color="green">218</FONT>         * Return the default type this &lt;code&gt;Converter&lt;/code&gt; handles.<a name="line.218"></a>
<FONT color="green">219</FONT>         *<a name="line.219"></a>
<FONT color="green">220</FONT>         * @return The default type this &lt;code&gt;Converter&lt;/code&gt; handles.<a name="line.220"></a>
<FONT color="green">221</FONT>         */<a name="line.221"></a>
<FONT color="green">222</FONT>        protected Class getDefaultType() {<a name="line.222"></a>
<FONT color="green">223</FONT>            return defaultTypeInstance.getClass();<a name="line.223"></a>
<FONT color="green">224</FONT>        }<a name="line.224"></a>
<FONT color="green">225</FONT>    <a name="line.225"></a>
<FONT color="green">226</FONT>        /**<a name="line.226"></a>
<FONT color="green">227</FONT>         * Handles conversion to a String.<a name="line.227"></a>
<FONT color="green">228</FONT>         *<a name="line.228"></a>
<FONT color="green">229</FONT>         * @param value The value to be converted.<a name="line.229"></a>
<FONT color="green">230</FONT>         * @return the converted String value.<a name="line.230"></a>
<FONT color="green">231</FONT>         * @throws Throwable if an error occurs converting to a String<a name="line.231"></a>
<FONT color="green">232</FONT>         */<a name="line.232"></a>
<FONT color="green">233</FONT>        protected String convertToString(Object value) throws Throwable {<a name="line.233"></a>
<FONT color="green">234</FONT>    <a name="line.234"></a>
<FONT color="green">235</FONT>            int size = 0;<a name="line.235"></a>
<FONT color="green">236</FONT>            Iterator iterator = null;<a name="line.236"></a>
<FONT color="green">237</FONT>            Class type = value.getClass();<a name="line.237"></a>
<FONT color="green">238</FONT>            if (type.isArray()) {<a name="line.238"></a>
<FONT color="green">239</FONT>                size = Array.getLength(value);<a name="line.239"></a>
<FONT color="green">240</FONT>            } else {<a name="line.240"></a>
<FONT color="green">241</FONT>                Collection collection = convertToCollection(type, value);<a name="line.241"></a>
<FONT color="green">242</FONT>                size = collection.size();<a name="line.242"></a>
<FONT color="green">243</FONT>                iterator = collection.iterator();<a name="line.243"></a>
<FONT color="green">244</FONT>            }<a name="line.244"></a>
<FONT color="green">245</FONT>    <a name="line.245"></a>
<FONT color="green">246</FONT>            if (size == 0) {<a name="line.246"></a>
<FONT color="green">247</FONT>                return (String)getDefault(String.class);<a name="line.247"></a>
<FONT color="green">248</FONT>            }<a name="line.248"></a>
<FONT color="green">249</FONT>    <a name="line.249"></a>
<FONT color="green">250</FONT>            if (onlyFirstToString) {<a name="line.250"></a>
<FONT color="green">251</FONT>                size = 1;<a name="line.251"></a>
<FONT color="green">252</FONT>            }<a name="line.252"></a>
<FONT color="green">253</FONT>    <a name="line.253"></a>
<FONT color="green">254</FONT>            // Create a StringBuffer containing a delimited list of the values<a name="line.254"></a>
<FONT color="green">255</FONT>            StringBuffer buffer = new StringBuffer();<a name="line.255"></a>
<FONT color="green">256</FONT>            for (int i = 0; i &lt; size; i++) {<a name="line.256"></a>
<FONT color="green">257</FONT>                if (i &gt; 0) {<a name="line.257"></a>
<FONT color="green">258</FONT>                    buffer.append(delimiter);<a name="line.258"></a>
<FONT color="green">259</FONT>                }<a name="line.259"></a>
<FONT color="green">260</FONT>                Object element = iterator == null ? Array.get(value, i) : iterator.next();<a name="line.260"></a>
<FONT color="green">261</FONT>                element = elementConverter.convert(String.class, element);<a name="line.261"></a>
<FONT color="green">262</FONT>                if (element != null) {<a name="line.262"></a>
<FONT color="green">263</FONT>                    buffer.append(element);<a name="line.263"></a>
<FONT color="green">264</FONT>                }<a name="line.264"></a>
<FONT color="green">265</FONT>            }<a name="line.265"></a>
<FONT color="green">266</FONT>    <a name="line.266"></a>
<FONT color="green">267</FONT>            return buffer.toString();<a name="line.267"></a>
<FONT color="green">268</FONT>    <a name="line.268"></a>
<FONT color="green">269</FONT>        }<a name="line.269"></a>
<FONT color="green">270</FONT>    <a name="line.270"></a>
<FONT color="green">271</FONT>        /**<a name="line.271"></a>
<FONT color="green">272</FONT>         * Handles conversion to an array of the specified type.<a name="line.272"></a>
<FONT color="green">273</FONT>         *<a name="line.273"></a>
<FONT color="green">274</FONT>         * @param type The type to which this value should be converted.<a name="line.274"></a>
<FONT color="green">275</FONT>         * @param value The input value to be converted.<a name="line.275"></a>
<FONT color="green">276</FONT>         * @return The converted value.<a name="line.276"></a>
<FONT color="green">277</FONT>         * @throws Throwable if an error occurs converting to the specified type<a name="line.277"></a>
<FONT color="green">278</FONT>         */<a name="line.278"></a>
<FONT color="green">279</FONT>        protected Object convertToType(Class type, Object value) throws Throwable {<a name="line.279"></a>
<FONT color="green">280</FONT>    <a name="line.280"></a>
<FONT color="green">281</FONT>            if (!type.isArray()) {<a name="line.281"></a>
<FONT color="green">282</FONT>                throw new ConversionException(toString(getClass())<a name="line.282"></a>
<FONT color="green">283</FONT>                        + " cannot handle conversion to '"<a name="line.283"></a>
<FONT color="green">284</FONT>                        + toString(type) + "' (not an array).");<a name="line.284"></a>
<FONT color="green">285</FONT>            }<a name="line.285"></a>
<FONT color="green">286</FONT>    <a name="line.286"></a>
<FONT color="green">287</FONT>            // Handle the source<a name="line.287"></a>
<FONT color="green">288</FONT>            int size = 0;<a name="line.288"></a>
<FONT color="green">289</FONT>            Iterator iterator = null;<a name="line.289"></a>
<FONT color="green">290</FONT>            if (value.getClass().isArray()) {<a name="line.290"></a>
<FONT color="green">291</FONT>                size = Array.getLength(value);<a name="line.291"></a>
<FONT color="green">292</FONT>            } else {<a name="line.292"></a>
<FONT color="green">293</FONT>                Collection collection = convertToCollection(type, value);<a name="line.293"></a>
<FONT color="green">294</FONT>                size = collection.size();<a name="line.294"></a>
<FONT color="green">295</FONT>                iterator = collection.iterator();<a name="line.295"></a>
<FONT color="green">296</FONT>            }<a name="line.296"></a>
<FONT color="green">297</FONT>    <a name="line.297"></a>
<FONT color="green">298</FONT>            // Allocate a new Array<a name="line.298"></a>
<FONT color="green">299</FONT>            Class componentType = type.getComponentType();<a name="line.299"></a>
<FONT color="green">300</FONT>            Object newArray = Array.newInstance(componentType, size);<a name="line.300"></a>
<FONT color="green">301</FONT>    <a name="line.301"></a>
<FONT color="green">302</FONT>            // Convert and set each element in the new Array<a name="line.302"></a>
<FONT color="green">303</FONT>            for (int i = 0; i &lt; size; i++) {<a name="line.303"></a>
<FONT color="green">304</FONT>                Object element = iterator == null ? Array.get(value, i) : iterator.next();<a name="line.304"></a>
<FONT color="green">305</FONT>                // TODO - probably should catch conversion errors and throw<a name="line.305"></a>
<FONT color="green">306</FONT>                //        new exception providing better info back to the user<a name="line.306"></a>
<FONT color="green">307</FONT>                element = elementConverter.convert(componentType, element);<a name="line.307"></a>
<FONT color="green">308</FONT>                Array.set(newArray, i, element);<a name="line.308"></a>
<FONT color="green">309</FONT>            }<a name="line.309"></a>
<FONT color="green">310</FONT>    <a name="line.310"></a>
<FONT color="green">311</FONT>            return newArray;<a name="line.311"></a>
<FONT color="green">312</FONT>        }<a name="line.312"></a>
<FONT color="green">313</FONT>    <a name="line.313"></a>
<FONT color="green">314</FONT>        /**<a name="line.314"></a>
<FONT color="green">315</FONT>         * Returns the value unchanged.<a name="line.315"></a>
<FONT color="green">316</FONT>         *<a name="line.316"></a>
<FONT color="green">317</FONT>         * @param value The value to convert<a name="line.317"></a>
<FONT color="green">318</FONT>         * @return The value unchanged<a name="line.318"></a>
<FONT color="green">319</FONT>         */<a name="line.319"></a>
<FONT color="green">320</FONT>        protected Object convertArray(Object value) {<a name="line.320"></a>
<FONT color="green">321</FONT>            return value;<a name="line.321"></a>
<FONT color="green">322</FONT>        }<a name="line.322"></a>
<FONT color="green">323</FONT>    <a name="line.323"></a>
<FONT color="green">324</FONT>        /**<a name="line.324"></a>
<FONT color="green">325</FONT>         * Converts non-array values to a Collection prior<a name="line.325"></a>
<FONT color="green">326</FONT>         * to being converted either to an array or a String.<a name="line.326"></a>
<FONT color="green">327</FONT>         * &lt;/p&gt;<a name="line.327"></a>
<FONT color="green">328</FONT>         * &lt;ul&gt;<a name="line.328"></a>
<FONT color="green">329</FONT>         *   &lt;li&gt;{@link Collection} values are returned unchanged&lt;/li&gt;<a name="line.329"></a>
<FONT color="green">330</FONT>         *   &lt;li&gt;{@link Number}, {@link Boolean}  and {@link java.util.Date} <a name="line.330"></a>
<FONT color="green">331</FONT>         *       values returned as a the only element in a List.&lt;/li&gt;<a name="line.331"></a>
<FONT color="green">332</FONT>         *   &lt;li&gt;All other types are converted to a String and parsed<a name="line.332"></a>
<FONT color="green">333</FONT>         *       as a delimited list.&lt;/li&gt;<a name="line.333"></a>
<FONT color="green">334</FONT>         * &lt;/ul&gt;<a name="line.334"></a>
<FONT color="green">335</FONT>         *<a name="line.335"></a>
<FONT color="green">336</FONT>         * &lt;strong&gt;N.B.&lt;/strong&gt; The method is called by both the<a name="line.336"></a>
<FONT color="green">337</FONT>         * {@link ArrayConverter#convertToType(Class, Object)} and<a name="line.337"></a>
<FONT color="green">338</FONT>         * {@link ArrayConverter#convertToString(Object)} methods for<a name="line.338"></a>
<FONT color="green">339</FONT>         * &lt;i&gt;non-array&lt;/i&gt; types.<a name="line.339"></a>
<FONT color="green">340</FONT>         *<a name="line.340"></a>
<FONT color="green">341</FONT>         * @param type The type to convert the value to<a name="line.341"></a>
<FONT color="green">342</FONT>         * @param value value to be converted<a name="line.342"></a>
<FONT color="green">343</FONT>         * @return Collection elements.<a name="line.343"></a>
<FONT color="green">344</FONT>         */<a name="line.344"></a>
<FONT color="green">345</FONT>        protected Collection convertToCollection(Class type, Object value) {<a name="line.345"></a>
<FONT color="green">346</FONT>            if (value instanceof Collection) {<a name="line.346"></a>
<FONT color="green">347</FONT>                return (Collection)value;<a name="line.347"></a>
<FONT color="green">348</FONT>            }<a name="line.348"></a>
<FONT color="green">349</FONT>            if (value instanceof Number ||<a name="line.349"></a>
<FONT color="green">350</FONT>                value instanceof Boolean ||<a name="line.350"></a>
<FONT color="green">351</FONT>                value instanceof java.util.Date) {<a name="line.351"></a>
<FONT color="green">352</FONT>                List list = new ArrayList(1);<a name="line.352"></a>
<FONT color="green">353</FONT>                list.add(value);<a name="line.353"></a>
<FONT color="green">354</FONT>                return list;<a name="line.354"></a>
<FONT color="green">355</FONT>            }<a name="line.355"></a>
<FONT color="green">356</FONT>            <a name="line.356"></a>
<FONT color="green">357</FONT>            return parseElements(type, value.toString());<a name="line.357"></a>
<FONT color="green">358</FONT>        }<a name="line.358"></a>
<FONT color="green">359</FONT>    <a name="line.359"></a>
<FONT color="green">360</FONT>        /**<a name="line.360"></a>
<FONT color="green">361</FONT>         * Return the default value for conversions to the specified<a name="line.361"></a>
<FONT color="green">362</FONT>         * type.<a name="line.362"></a>
<FONT color="green">363</FONT>         * @param type Data type to which this value should be converted.<a name="line.363"></a>
<FONT color="green">364</FONT>         * @return The default value for the specified type.<a name="line.364"></a>
<FONT color="green">365</FONT>         */<a name="line.365"></a>
<FONT color="green">366</FONT>        protected Object getDefault(Class type) {<a name="line.366"></a>
<FONT color="green">367</FONT>            if (type.equals(String.class)) {<a name="line.367"></a>
<FONT color="green">368</FONT>                return null;<a name="line.368"></a>
<FONT color="green">369</FONT>            }<a name="line.369"></a>
<FONT color="green">370</FONT>    <a name="line.370"></a>
<FONT color="green">371</FONT>            Object defaultValue = super.getDefault(type);<a name="line.371"></a>
<FONT color="green">372</FONT>            if (defaultValue == null) {<a name="line.372"></a>
<FONT color="green">373</FONT>                return null;<a name="line.373"></a>
<FONT color="green">374</FONT>            }<a name="line.374"></a>
<FONT color="green">375</FONT>    <a name="line.375"></a>
<FONT color="green">376</FONT>            if (defaultValue.getClass().equals(type)) {<a name="line.376"></a>
<FONT color="green">377</FONT>                return defaultValue;<a name="line.377"></a>
<FONT color="green">378</FONT>            } else {<a name="line.378"></a>
<FONT color="green">379</FONT>                return Array.newInstance(type.getComponentType(), defaultSize);<a name="line.379"></a>
<FONT color="green">380</FONT>            }<a name="line.380"></a>
<FONT color="green">381</FONT>    <a name="line.381"></a>
<FONT color="green">382</FONT>        }<a name="line.382"></a>
<FONT color="green">383</FONT>    <a name="line.383"></a>
<FONT color="green">384</FONT>        /**<a name="line.384"></a>
<FONT color="green">385</FONT>         * Provide a String representation of this array converter.<a name="line.385"></a>
<FONT color="green">386</FONT>         *<a name="line.386"></a>
<FONT color="green">387</FONT>         * @return A String representation of this array converter<a name="line.387"></a>
<FONT color="green">388</FONT>         */<a name="line.388"></a>
<FONT color="green">389</FONT>        public String toString() {<a name="line.389"></a>
<FONT color="green">390</FONT>            StringBuffer buffer = new StringBuffer();<a name="line.390"></a>
<FONT color="green">391</FONT>            buffer.append(toString(getClass()));<a name="line.391"></a>
<FONT color="green">392</FONT>            buffer.append("[UseDefault=");<a name="line.392"></a>
<FONT color="green">393</FONT>            buffer.append(isUseDefault());<a name="line.393"></a>
<FONT color="green">394</FONT>            buffer.append(", ");<a name="line.394"></a>
<FONT color="green">395</FONT>            buffer.append(elementConverter.toString());<a name="line.395"></a>
<FONT color="green">396</FONT>            buffer.append(']');<a name="line.396"></a>
<FONT color="green">397</FONT>            return buffer.toString();<a name="line.397"></a>
<FONT color="green">398</FONT>        }<a name="line.398"></a>
<FONT color="green">399</FONT>    <a name="line.399"></a>
<FONT color="green">400</FONT>        /**<a name="line.400"></a>
<FONT color="green">401</FONT>         * &lt;p&gt;Parse an incoming String of the form similar to an array initializer<a name="line.401"></a>
<FONT color="green">402</FONT>         * in the Java language into a &lt;code&gt;List&lt;/code&gt; individual Strings<a name="line.402"></a>
<FONT color="green">403</FONT>         * for each element, according to the following rules.&lt;/p&gt;<a name="line.403"></a>
<FONT color="green">404</FONT>         * &lt;ul&gt;<a name="line.404"></a>
<FONT color="green">405</FONT>         * &lt;li&gt;The string is expected to be a comma-separated list of values.&lt;/li&gt;<a name="line.405"></a>
<FONT color="green">406</FONT>         * &lt;li&gt;The string may optionally have matching '{' and '}' delimiters<a name="line.406"></a>
<FONT color="green">407</FONT>         *   around the list.&lt;/li&gt;<a name="line.407"></a>
<FONT color="green">408</FONT>         * &lt;li&gt;Whitespace before and after each element is stripped.&lt;/li&gt;<a name="line.408"></a>
<FONT color="green">409</FONT>         * &lt;li&gt;Elements in the list may be delimited by single or double quotes.<a name="line.409"></a>
<FONT color="green">410</FONT>         *  Within a quoted elements, the normal Java escape sequences are valid.&lt;/li&gt;<a name="line.410"></a>
<FONT color="green">411</FONT>         * &lt;/ul&gt;<a name="line.411"></a>
<FONT color="green">412</FONT>         *<a name="line.412"></a>
<FONT color="green">413</FONT>         * @param type The type to convert the value to<a name="line.413"></a>
<FONT color="green">414</FONT>         * @param value String value to be parsed<a name="line.414"></a>
<FONT color="green">415</FONT>         * @return List of parsed elements.<a name="line.415"></a>
<FONT color="green">416</FONT>         *<a name="line.416"></a>
<FONT color="green">417</FONT>         * @throws ConversionException if the syntax of &lt;code&gt;svalue&lt;/code&gt;<a name="line.417"></a>
<FONT color="green">418</FONT>         *  is not syntactically valid<a name="line.418"></a>
<FONT color="green">419</FONT>         * @throws NullPointerException if &lt;code&gt;svalue&lt;/code&gt;<a name="line.419"></a>
<FONT color="green">420</FONT>         *  is &lt;code&gt;null&lt;/code&gt;<a name="line.420"></a>
<FONT color="green">421</FONT>         */<a name="line.421"></a>
<FONT color="green">422</FONT>        private List parseElements(Class type, String value) {<a name="line.422"></a>
<FONT color="green">423</FONT>    <a name="line.423"></a>
<FONT color="green">424</FONT>            if (log().isDebugEnabled()) {<a name="line.424"></a>
<FONT color="green">425</FONT>                log().debug("Parsing elements, delimiter=[" + delimiter + "], value=[" + value + "]");<a name="line.425"></a>
<FONT color="green">426</FONT>            }<a name="line.426"></a>
<FONT color="green">427</FONT>    <a name="line.427"></a>
<FONT color="green">428</FONT>            // Trim any matching '{' and '}' delimiters<a name="line.428"></a>
<FONT color="green">429</FONT>            value = value.trim();<a name="line.429"></a>
<FONT color="green">430</FONT>            if (value.startsWith("{") &amp;&amp; value.endsWith("}")) {<a name="line.430"></a>
<FONT color="green">431</FONT>                value = value.substring(1, value.length() - 1);<a name="line.431"></a>
<FONT color="green">432</FONT>            }<a name="line.432"></a>
<FONT color="green">433</FONT>    <a name="line.433"></a>
<FONT color="green">434</FONT>            try {<a name="line.434"></a>
<FONT color="green">435</FONT>    <a name="line.435"></a>
<FONT color="green">436</FONT>                // Set up a StreamTokenizer on the characters in this String<a name="line.436"></a>
<FONT color="green">437</FONT>                StreamTokenizer st = new StreamTokenizer(new StringReader(value));<a name="line.437"></a>
<FONT color="green">438</FONT>                st.whitespaceChars(delimiter , delimiter); // Set the delimiters<a name="line.438"></a>
<FONT color="green">439</FONT>                st.ordinaryChars('0', '9');  // Needed to turn off numeric flag<a name="line.439"></a>
<FONT color="green">440</FONT>                st.wordChars('0', '9');      // Needed to make part of tokens<a name="line.440"></a>
<FONT color="green">441</FONT>                for (int i = 0; i &lt; allowedChars.length; i++) {<a name="line.441"></a>
<FONT color="green">442</FONT>                    st.ordinaryChars(allowedChars[i], allowedChars[i]);<a name="line.442"></a>
<FONT color="green">443</FONT>                    st.wordChars(allowedChars[i], allowedChars[i]);<a name="line.443"></a>
<FONT color="green">444</FONT>                }<a name="line.444"></a>
<FONT color="green">445</FONT>    <a name="line.445"></a>
<FONT color="green">446</FONT>                // Split comma-delimited tokens into a List<a name="line.446"></a>
<FONT color="green">447</FONT>                List list = null;<a name="line.447"></a>
<FONT color="green">448</FONT>                while (true) {<a name="line.448"></a>
<FONT color="green">449</FONT>                    int ttype = st.nextToken();<a name="line.449"></a>
<FONT color="green">450</FONT>                    if ((ttype == StreamTokenizer.TT_WORD) || (ttype &gt; 0)) {<a name="line.450"></a>
<FONT color="green">451</FONT>                        if (st.sval != null) {<a name="line.451"></a>
<FONT color="green">452</FONT>                            if (list == null) {<a name="line.452"></a>
<FONT color="green">453</FONT>                                list = new ArrayList();<a name="line.453"></a>
<FONT color="green">454</FONT>                            }<a name="line.454"></a>
<FONT color="green">455</FONT>                            list.add(st.sval);<a name="line.455"></a>
<FONT color="green">456</FONT>                        }<a name="line.456"></a>
<FONT color="green">457</FONT>                    } else if (ttype == StreamTokenizer.TT_EOF) {<a name="line.457"></a>
<FONT color="green">458</FONT>                        break;<a name="line.458"></a>
<FONT color="green">459</FONT>                    } else {<a name="line.459"></a>
<FONT color="green">460</FONT>                        throw new ConversionException("Encountered token of type "<a name="line.460"></a>
<FONT color="green">461</FONT>                            + ttype + " parsing elements to '" + toString(type) + ".");<a name="line.461"></a>
<FONT color="green">462</FONT>                    }<a name="line.462"></a>
<FONT color="green">463</FONT>                }<a name="line.463"></a>
<FONT color="green">464</FONT>    <a name="line.464"></a>
<FONT color="green">465</FONT>                if (list == null) {<a name="line.465"></a>
<FONT color="green">466</FONT>                    list = Collections.EMPTY_LIST;<a name="line.466"></a>
<FONT color="green">467</FONT>                }<a name="line.467"></a>
<FONT color="green">468</FONT>                if (log().isDebugEnabled()) {<a name="line.468"></a>
<FONT color="green">469</FONT>                    log().debug(list.size() + " elements parsed");<a name="line.469"></a>
<FONT color="green">470</FONT>                }<a name="line.470"></a>
<FONT color="green">471</FONT>    <a name="line.471"></a>
<FONT color="green">472</FONT>                // Return the completed list<a name="line.472"></a>
<FONT color="green">473</FONT>                return (list);<a name="line.473"></a>
<FONT color="green">474</FONT>    <a name="line.474"></a>
<FONT color="green">475</FONT>            } catch (IOException e) {<a name="line.475"></a>
<FONT color="green">476</FONT>    <a name="line.476"></a>
<FONT color="green">477</FONT>                throw new ConversionException("Error converting from String to '"<a name="line.477"></a>
<FONT color="green">478</FONT>                        + toString(type) + "': " + e.getMessage(), e);<a name="line.478"></a>
<FONT color="green">479</FONT>    <a name="line.479"></a>
<FONT color="green">480</FONT>            }<a name="line.480"></a>
<FONT color="green">481</FONT>    <a name="line.481"></a>
<FONT color="green">482</FONT>        }<a name="line.482"></a>
<FONT color="green">483</FONT>    <a name="line.483"></a>
<FONT color="green">484</FONT>    }<a name="line.484"></a>




























































</PRE>
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